Question: When Atacama Region has its population 230873.0?
Paraphrase: When did the Atacama region have a population of 23,0873?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q2120 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '230873.0')) . ?s pq:P585 ?value}